The invention discloses a dynamic backlight LED optical
composite film and a preparation method thereof. The dynamic backlight LED optical
composite film comprises a
diffusion film, a brightness enhancement
prism film, a polarizing film and a micro lens film, wherein the
diffusion film, the brightness enhancement
prism film, the polarizing film and the micro lens film are sequentially bonded through glue
layers from bottom to top; the lower surface of the
diffusion film is connected with an isolation film; and the diffusion film comprises an antistatic layer, a
PET substrate layer and a
diffuse reflection layer, wherein the lower surface of the
PET substrate layer is connected with the upper surface of the antistatic layer. According to the dynamic backlight LED optical
composite film andthe preparation method thereof, the antistatic layer is added to the lower surface of a traditional diffusion film, so that the antistatic function of the diffusion film is improved, and the circuit can be effectively protected; in addition, the lower surface of the antistatic layer is provided with the strip-shaped edge grooves and the fixing grooves, so that a deformation space is provided for the diffusion film; meanwhile, the tips of the strip-shaped edge grooves make contact with a
light guide plate, so that the diffusion film and the
light guide plate can be prevented from being bonded together; and the isolation film is added, so that elasticity is good, softness is achieved, and the optical composite film can be prevented from
scratching light guide.